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Note 3 - Loans and Allowance for Credit Losses - Loan Vintage (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Financing Receivable, Year One, Originated, Current Fiscal Year $ 1,098,837 $ 1,253,892  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 964,475 965,863  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 740,508 751,371  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 615,667 434,453  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 342,667 89,819  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 99,001 96,332  
Financing Receivable, Term Loan 3,861,155 3,591,730  
Financing Receivable, Revolving 739,626 712,028  
Loans 4,600,781 4,303,758  
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff 10 3  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff 1 204  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff 19 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff 41 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff 3,741 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff 5 283  
Financing receivable, term loan write offs 3,817 490  
Financing Receivable, Revolving, Writeoff 20 373  
Current-period gross write-offs 3,837 863 $ 292
Commercial Portfolio Segment [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 1,020,625 1,114,823  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 838,660 629,468  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 430,293 517,560  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 411,444 351,843  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 269,254 78,643  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 51,237 50,668  
Financing Receivable, Term Loan 3,021,513 2,743,005  
Financing Receivable, Revolving 685,791 672,294  
Loans 3,707,304 3,415,299  
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff 0 14  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff 3,741 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff 0 40  
Financing receivable, term loan write offs 3,741 54  
Financing Receivable, Revolving, Writeoff 9 218  
Current-period gross write-offs 3,750 272  
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 295,978 281,870  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 157,408 139,984  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 76,800 110,459  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 61,309 38,938  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 12,918 13,428  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 10,431 9,279  
Financing Receivable, Term Loan 614,844 593,958  
Financing Receivable, Revolving 672,464 660,628  
Loans 1,287,308 1,254,586  
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff 3,741 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff 0 0  
Financing receivable, term loan write offs 3,741 0  
Financing Receivable, Revolving, Writeoff 9 218  
Current-period gross write-offs 3,750 218 171
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Grades 1-4 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 102,898 103,531  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 68,536 79,883  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 41,609 90,107  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 47,534 20,577  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 9,551 5,978  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 8,412 9,160  
Financing Receivable, Term Loan 278,540 309,236  
Financing Receivable, Revolving 351,311 414,920  
Loans 629,851 724,156  
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Grades 5-7 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 188,267 174,668  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 88,471 57,979  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 31,755 20,075  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 13,513 18,361  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 3,298 7,450  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,019 119  
Financing Receivable, Term Loan 327,323 278,652  
Financing Receivable, Revolving 309,860 227,155  
Loans 637,183 505,807  
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Grades 8-9 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 4,813 3,671  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 401 2,122  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 3,436 277  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 262 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 69 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 0 0  
Financing Receivable, Term Loan 8,981 6,070  
Financing Receivable, Revolving 11,293 18,553  
Loans 20,274 24,623  
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 50,228 42,683  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 12,683 27,814  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 2,465 1,246  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 694 2,112  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 177 40  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 689 858  
Financing Receivable, Term Loan 66,936 74,753  
Financing Receivable, Revolving 0 0  
Loans 66,936 74,753  
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff 0 0  
Financing receivable, term loan write offs 0 0  
Financing Receivable, Revolving, Writeoff 0 0  
Current-period gross write-offs 0 0 29
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Grades 1-4 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 18,536 24,875  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 4,997 6,570  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 610 1,108  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 645 2,110  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 177 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 226 281  
Financing Receivable, Term Loan 25,191 34,944  
Financing Receivable, Revolving 0 0  
Loans 25,191 34,944  
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Grades 5-7 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 31,692 17,799  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 7,681 21,244  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 1,855 138  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 49 2  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0 40  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 463 496  
Financing Receivable, Term Loan 41,740 39,719  
Financing Receivable, Revolving 0 0  
Loans 41,740 39,719  
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Grades 8-9 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 0 9  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 5 0  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 0 81  
Financing Receivable, Term Loan 5 90  
Financing Receivable, Revolving 0 0  
Loans 5 90  
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 288,793 316,576  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 146,639 173,818  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 147,050 113,711  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 97,535 74,697  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 46,450 23,781  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 9,080 3,418  
Financing Receivable, Term Loan 735,547 706,001  
Financing Receivable, Revolving 13,290 11,666  
Loans 748,837 717,667  
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff 0 14  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff 0 40  
Financing receivable, term loan write offs 0 54  
Financing Receivable, Revolving, Writeoff 0 0  
Current-period gross write-offs 0 54 38
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Grades 1-4 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 179,763 205,379  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 84,641 110,130  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 88,794 85,982  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 75,702 47,630  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 34,031 14,362  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 3,469 2,908  
Financing Receivable, Term Loan 466,400 466,391  
Financing Receivable, Revolving 0 1,948  
Loans 466,400 468,339  
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Grades 5-7 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 108,316 111,197  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 61,998 63,271  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 52,072 27,729  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 21,833 27,029  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 12,386 9,419  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 5,611 439  
Financing Receivable, Term Loan 262,216 239,084  
Financing Receivable, Revolving 13,290 9,718  
Loans 275,506 248,802  
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Grades 8-9 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 714 0  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0 417  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 6,184 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0 38  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 33 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 0 71  
Financing Receivable, Term Loan 6,931 526  
Financing Receivable, Revolving 0 0  
Loans 6,931 526  
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 287,389 353,490  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 300,592 203,376  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 161,365 223,084  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 184,603 190,594  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 170,183 33,812  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 24,272 31,328  
Financing Receivable, Term Loan 1,128,404 1,035,684  
Financing Receivable, Revolving 0 0  
Loans 1,128,404 1,035,684  
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff 0 0  
Financing receivable, term loan write offs 0 0  
Financing Receivable, Revolving, Writeoff 0 0  
Current-period gross write-offs 0 0 (0)
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Grades 1-4 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 84,773 109,125  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 79,911 84,912  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 76,468 113,846  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 93,034 102,279  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 84,355 27,664  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 13,703 13,193  
Financing Receivable, Term Loan 432,244 451,019  
Financing Receivable, Revolving 0 0  
Loans 432,244 451,019  
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Grades 5-7 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 194,634 233,471  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 220,681 118,464  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 84,897 109,238  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 91,569 88,315  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 85,828 6,148  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 10,569 18,135  
Financing Receivable, Term Loan 688,178 573,771  
Financing Receivable, Revolving 0 0  
Loans 688,178 573,771  
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Grades 8-9 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 7,982 10,894  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0 0  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 0 0  
Financing Receivable, Term Loan 7,982 10,894  
Financing Receivable, Revolving 0 0  
Loans 7,982 10,894  
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 98,237 120,204  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 221,338 84,476  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 42,613 69,060  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 67,303 45,502  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 39,526 7,582  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 6,765 5,785  
Financing Receivable, Term Loan 475,782 332,609  
Financing Receivable, Revolving 37 0  
Loans 475,819 332,609  
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff 0 0  
Financing receivable, term loan write offs 0 0  
Financing Receivable, Revolving, Writeoff 0 0  
Current-period gross write-offs 0 0 (0)
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Grades 1-4 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 16,271 36,038  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 46,870 28,512  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 10,107 64,244  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 62,744 35,129  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 33,337 4,883  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 3,780 3,649  
Financing Receivable, Term Loan 173,109 172,455  
Financing Receivable, Revolving 0 0  
Loans 173,109 172,455  
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Grades 5-7 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 81,919 72,916  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 174,468 55,964  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 32,506 4,816  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 4,559 9,372  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 5,626 2,699  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,985 2,136  
Financing Receivable, Term Loan 302,063 147,903  
Financing Receivable, Revolving 37 0  
Loans 302,100 147,903  
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Grades 8-9 [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 47 11,250  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0 0  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0 1,001  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 563 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 0 0  
Financing Receivable, Term Loan 610 12,251  
Financing Receivable, Revolving 0 0  
Loans 610 12,251  
Retail Portfolio Segment [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 78,212 139,069  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 125,815 336,395  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 310,215 233,811  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 204,223 82,610  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 73,413 11,176  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 47,764 45,664  
Financing Receivable, Term Loan 839,642 848,725  
Financing Receivable, Revolving 53,835 39,734  
Loans 893,477 888,459  
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff 10 3  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff 1 190  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff 19 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff 41 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff 5 243  
Financing receivable, term loan write offs 76 436  
Financing Receivable, Revolving, Writeoff 11 155  
Current-period gross write-offs 87 591  
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 72,349 133,931  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 122,807 333,826  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 308,787 232,147  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 203,491 82,002  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 73,052 10,525  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 47,111 44,948  
Financing Receivable, Term Loan 827,597 837,379  
Financing Receivable, Revolving 0 27  
Loans 827,597 837,406  
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff 0 174  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff 33 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff 0 240  
Financing receivable, term loan write offs 33 414  
Financing Receivable, Revolving, Writeoff 0 0  
Current-period gross write-offs 33 414 33
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] | Performing Financial Instruments [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 72,349 133,823  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 122,718 332,098  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 307,161 231,842  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 203,052 82,002  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 73,052 10,515  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 46,290 44,003  
Financing Receivable, Term Loan 824,622 834,283  
Financing Receivable, Revolving 0 27  
Loans 824,622 834,310  
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] | Nonperforming Financial Instruments [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 0 108  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 89 1,728  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 1,626 305  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 439 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0 10  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 821 945  
Financing Receivable, Term Loan 2,975 3,096  
Financing Receivable, Revolving 0 0  
Loans 2,975 3,096  
Retail Portfolio Segment [Member] | Other Consumer Loans [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 5,863 5,138  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 3,008 2,569  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 1,428 1,664  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 732 608  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 361 651  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 653 716  
Financing Receivable, Term Loan 12,045 11,346  
Financing Receivable, Revolving 53,835 39,707  
Loans 65,880 51,053  
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff 10 3  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff 1 16  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff 19 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff 8 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff 0 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff 5 3  
Financing receivable, term loan write offs 43 22  
Financing Receivable, Revolving, Writeoff 11 155  
Current-period gross write-offs 54 177 $ 21
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] | Performing Financial Instruments [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 5,863 5,138  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 3,008 2,569  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 1,428 1,664  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 732 608  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 361 651  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 653 716  
Financing Receivable, Term Loan 12,045 11,346  
Financing Receivable, Revolving 53,835 39,707  
Loans 65,880 51,053  
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] | Nonperforming Financial Instruments [Member]      
Financing Receivable, Year One, Originated, Current Fiscal Year 0 0  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0 0  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0 0  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 0 0  
Financing Receivable, Term Loan 0 0  
Financing Receivable, Revolving 0 0  
Loans $ 0 $ 0